Carbureter.



J. T. ATHERTON.

CARBURETER. APPLICATION FILED AUG.16, 1912.

JOHN T. ATHERTON, OF NEW YORK, N. Y.

CARBUR'ETER.

Specification of Letters Patent.

Application filed August 16, 1912. Serial No. 715,432.

To all whom it ma'j concern:

Be it known that I, Jorm T. ATHERTON, a citizen of the United States, and resident of the borough of Manhattan, in the city, county, and State of New York, have invented a new and useful Improvement in Carburetors, of which the following is a specification.

The object of this invention is to provide certain improvements in the construction, form and arrangement of the several parts of a carbureter whereby a more complete intermixture of the liquid hydrocarbon and air is obtained than heretofore and in which the parts are so arranged that they may be readily assembled. a

' A further object is to provide means whereby the mixture may be varied without changing the position of the needle .valve.

A practical embodiment of my invention is represented in the accompanying drawings, in which Figure 1 represents the carburetor in top plan, Fig. 2 is a side elevation, Fig. 3 is a longitudinal vertical central section taken in the plane of the line A--A of Fig. 1, and

Fig. 4 is an inverted plan view.

The carbureter comprises a lower casing member 1, which contains the liquid hydrocarbon reservoir 2 and an upper casing member 3 which contains the mixing chamber 4, the air intake 5 and the gas outlet 6. The liquid hydrocarbon or float chamber 2 is provided with the usual float 7 and with the liquid hydrocarbon passage 8 in the extension 9 of the lower casing member.

A horizontally arranged open passage. 10

leads from the air intake 5 to the mixing 9 of the valve member 1 of the casing and it projects upwardly into the tubular member 16 but is spaced from the inner wall of said tubular member 16 so as to form an air inlet passage 19 around the nozzle 17. The

needle valve 18.

Patented May 30, 1916.

spray nozzle 17 is provided with the usual I The tubular member 16 extending above the top of the spray nozzle forms a carbureting chamber 20 and its top is inalinement with the open horizontal passage 10 leading from the air intake 5 so that the stream of air passing through the passage 10 is directed across the top of the said tubular member. A damper 21 is provided for the outlet of the carbureter and where desired an auxiliary damper 22 may be provided for the intake 5. The exterior arms 23, 24, of these two dampers 21, 22, are connected by an adjustable rod 25 so that the desired relative opening and closing of the two dampers '21 and 22 may be obtained. The lower member 1 of the carbureter casing is provided with a liquid hydrocarbon inlet 26 in an extension 27. The float chamber 2 may be provided with the usual drip cook 28.

In operation, a certain amount of air is drawn in through the passage 19 and is intermixed in the carbureting chamber with the liquid hydrocarbon as it issues from ,the spray nozzle. Under certain conditions,

an additional amount of air is added to the mixture as it issues from the carbureting chamber, which additional air passes across the top of the tubular member from the passage 10. Under certain other conditions the suction due to the operation of the motor to which the carburetor is attached will open the air valve 12 to a greater .or lesser extent to permit the addition of still more air to the mixture.

Thedamper 22 in the air intake 5 serves,

carbon is obtained in a very simple and effective manner and the parts may very readily be assembled.

What I claim is A carbureter having a mixing chamber, a vertically arranged liquid hydrocarbon spray nozzle, a tubular member extending above the top of said spray nozzle and projecting into said mixing chamber to forma car mixing chamber for by-passing a portion of the air from said air inlet.

In testimony,,that I claim the foregoing as my invention, I have signed my name in 15 presence of two Witnesses, this 14th day of August, 1912.

JOHN T. ATHERTON.

Witnesses:

HENRY C. THIEME, OTTO W. HOLMGREN. 

